I think people might see that sometimes, but not understand why, because they just see a starship blows up headlines and don't understand what is happening as it's a test program (for now), and the headlines / stories don't convey that.

So when things explode, sometimes it's fine, and the stock might go up because a lot of really important things still were tested, some for the first time, and they went well.

Other times, things will explode and it can cause huge delays, and while they learn something, it's still 'bad' compared to the above blow ups, and the stock will very likely go down when these ones happen.

And then sometimes, something goes wrong on the test pad and you blow it up, and that is very bad. It's a test pad, its meant for that, but it causes huuuuuge delays.

But OP is right, they brought this new chaos upon themselves by going public. They really shouldn't have done it yet.